Help With Installing the Plantronics APN-91 EHS Cable for NEC Phones

NEC phones come programmed with varying settings regarding headsets.  Most of the time the APN-91 cable will work without issues.  On occasion the audio will work, but you don’t have the ability to answer/hangup remotely.  When that occurs, we suggest the following:   1) On the Plantronics wireless headset base (CS500 series, W700 Savi series, … Continued